The authors estimate fixed-effects regression models for race- and age-specific teenage fertility. Their unit of analysis is annual county-level birth rates for teenage women of white and nonwhite race, ages 15 and 18. They find that Aid to Families with Dependent Children is positively related to birth rate for all ages and races examined, while Medicaid funding for abortion and wage rates are positively related to the birth rates for 18-year-old white teenage women.
Jackson, Catherine A. and Jacob Alex Klerman, Fixed Effects, Public Policy and Teenage Fertility. Santa Monica, CA: RAND Corporation, 1993. https://www.rand.org/pubs/drafts/DRU428.html. Also available in print form.
Jackson, Catherine A. and Jacob Alex Klerman, Fixed Effects, Public Policy and Teenage Fertility, Santa Monica, Calif.: RAND Corporation, DRU-428-NICHD, 1993. As of August 03, 2022: https://www.rand.org/pubs/drafts/DRU428.html